Hope you enjoy, I did.
First of all, thank you to every contributor. I have read almost every story on the site and love them all, keep 'em coming.
I think I first started masturbating about 9 or 10. My cousin of 11 and I had been out hiking one day in the summer and were hot and sweaty. As we were walking along, Mike (name changed) kept eyeing the brook that was beside the wood road we were on and asked me if I wanted to do something to cool off. I was game for anything that would cool me down and that water was cold! I figured we'd take a drink and wash our faces but he had other plans. He stripped out of his shorts and underwear and sat down with his cock and balls in the water. His crotch was hairy and I had none around my cock so I was very interested. He motioned me over to sit beside him in the water and I did, still looking at his 4or5' cock, now sticking out straight. When I was beside him he asked me if I touched myself. I said 'No', lying. After admitting that he did it I also agreed that it was fun. He started rubbing his cock and looked so hot! I had mine in my hand and was doing the same, just differently. When he said I could touch him I was excited as hell. His cock was so much bigger than mine and I loved the feel of it my hand. Apparently my method was new to him because in no time he started to shake. I slowed down and asked if he wanted to touch me. His hand was warm and rough from working but the way he grabbed my cock was fantastic. After rubbing it for a while, he put his mouth over it and completely swallowed my dick. I think I came but didn't produce cum yet so he got off easy. He asked me to finish jerking him off so I took some of his pre-cum and jerked his cock until he came. We got dressed and finished the day without discussing what had happened, but looking back on it, I'd gladly do it again. I did suck his cock eventually and jerked off with his sister too, but that's another story.